Best & worst diets of 2014

Take a look at the best and worst diets of 2014 as ranked by U.S. News & World Report.

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6 (tie). Volumetrics Diet

Volumetrics outperformed its competitors in many categories. It earned particularly high marks for being safe and nutritious, and experts said it could have a positive effect on heart health and diabetes. "This is an eating plan that everyone can benefit from," one expert said.